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Author : J. C. Hoff
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (596 download)
Download or read book Aircraft Parameter Estimation by Estimation-before-modelling Technique written by J. C. Hoff and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : J.R. Raol
Publisher : IET
ISBN 13 : 0863413633
Total Pages : 405 pages
Book Rating : 4.8/5 (634 download)
Download or read book Modelling and Parameter Estimation of Dynamic Systems written by J.R. Raol and published by IET. This book was released on 2004-08-13 with total page 405 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a detailed examination of the estimation techniques and modeling problems. The theory is furnished with several illustrations and computer programs to promote better understanding of system modeling and parameter estimation.
Author : Majeed Mohamed
Publisher : Springer Nature
ISBN 13 : 9811601046
Total Pages : 66 pages
Book Rating : 4.8/5 (116 download)
Download or read book Aircraft Aerodynamic Parameter Estimation from Flight Data Using Neural Partial Differentiation written by Majeed Mohamed and published by Springer Nature. This book was released on 2021-02-23 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents neural partial differentiation as an estimation algorithm for extracting aerodynamic derivatives from flight data. It discusses neural modeling of the aircraft system. The neural partial differentiation approach discussed in the book helps estimate parameters with their statistical information from the noisy data. Moreover, this method avoids the need for prior information about the aircraft model parameters. The objective of the book is to extend the use of the neural partial differentiation method to the multi-input multi-output aircraft system for the online estimation of aircraft parameters from an established neural model. This approach will be relevant for the design of an adaptive flight control system. The book also discusses the estimation of aerodynamic derivatives of rigid and flexible aircraft which are treated separately. The longitudinal and lateral-directional derivatives of aircraft are estimated from flight data. Besides the aerodynamic derivatives, mode shape parameters of flexible aircraft are also identified in the book as part of identification for the state space aircraft model. Since the detailed description of the approach is illustrated through the block diagram and their results are presented in tabular form with figures of parameters converge to their estimates, the contents of this book are intended for readers who want to pursue a postgraduate and doctoral degree in science and engineering. This book is useful for practicing scientists, engineers, and teachers in the field of aerospace engineering.
Author :
Publisher :
ISBN 13 :
Total Pages : 404 pages
Book Rating : 4.:/5 (31 download)
Download or read book Parameter Estimation Techniques and Applications in Aircraft Flight Testing written by and published by . This book was released on 1974 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Cranfield Institute of Technology
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (56 download)
Download or read book On the Adequate Model for Aircraft Parameter Estimation written by Cranfield Institute of Technology and published by . This book was released on 1975 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : John C. Hoff
Publisher :
ISBN 13 : 9781871315677
Total Pages : 90 pages
Book Rating : 4.3/5 (156 download)
Download or read book Fortran Programs for Aircraft Parameter Identification Using the Estimation-before-modelling Technique written by John C. Hoff and published by . This book was released on 1997 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jordan Leung
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (133 download)
Download or read book Parameter Estimation Methods for High Angle-of-attack Aerodynamic Modelling written by Jordan Leung and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, extensive research has been performed in post-stall aerodynamic model development to facilitate the use of simulator-based stall recovery training for commercial pilots. To develop these aerodynamic models, the parameters within a postulated model structure are often estimated from flight test data in a process referred to as aircraft parameter estimation. However, the complex dynamics involved in stall poses some notable challenges to the parameter estimation procedure. This thesis presents and investigates a variety of parameter estimation methods that yield more accurate estimates than traditional techniques when applied to stall modelling problems. Specifically, these methods look to reduce parameter biases that occur during post-stall modelling problems due to the presence of large model deficiencies. The presented methods are applied to both simulated and real aircraft flight data to demonstrate the improvements seen over traditional aircraft parameter estimation methods.
Author :
Publisher :
ISBN 13 :
Total Pages : 180 pages
Book Rating : 4.:/5 (317 download)
Download or read book Practical Input Optimization for Aircraft Parameter Estimation Experiments written by and published by . This book was released on 1993 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Cranfield Institute of Technology
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (56 download)
Download or read book On the Adequate Model for Aircraft Parameter Estimation written by Cranfield Institute of Technology and published by . This book was released on 1975 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Flight Center
Publisher : CreateSpace
ISBN 13 : 9781499161762
Total Pages : 394 pages
Book Rating : 4.1/5 (617 download)
Download or read book Parameter Estimation Techniques and Applications in Aircraft Flight Testing written by Flight Center and published by CreateSpace. This book was released on 2014-04-15 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt: To provide a forum for discussion of the status and the future of this technology, the NASA Flight Research Center hosted a Symposium on Parameter Estimation Techniques and Application in Aircraft Flight Testing. Technical papers were presented by selected representatives from industry, universities, and various Air Force, Navy, and NASA installations who are actively working in the field.
Author :
Publisher :
ISBN 13 :
Total Pages : 118 pages
Book Rating : 4.:/5 (227 download)
Download or read book A Comparison of Flight Input Techniques for Parameter Estimation of Highly-Augmented Aircraft written by and published by . This book was released on 1995 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: Parameter estimation is an inverse process in which stability derivatives are determined from time history flight data by matching the aircraft mathematical model's computed response with the measured response of the aircraft. Accurate parameter estimation depends mainly on instrumentation and input technique. Input technique is the focus of this thesis in which both classical inputs and optimal inputs were applied under the same flight conditions to the High Angle of Attack Research Vehicle (HARV) at NASA Dryden Flight Research Center. Post flight parameter estimation was conducted in all cases using a maximum likelihood technique to determine estimated of stability and control derivatives and their respective Cramer-Rao bounds. The Cramer-Rao bound is the most useful measure of estimate accuracy when comparing results from different input techniques assuming the same mathematical model and minimization technique were used for the parameter estimates. Comparison of the Cramer-Rao bounds showed that of the four input techniques used for determining parameter estimates, the Dryden single-surface input technique yielded the most accurate parameters for 75 percent of the estimates in all cases. Application of these conclusions in further research can save time and costs.
Author :
Publisher :
ISBN 13 :
Total Pages : 58 pages
Book Rating : 4.:/5 (317 download)
Download or read book Comparison of Stability and Control Parameters for a Light, Single-engine, High-winged Aircraft Using Different Flight Test and Parameter Estimation Techniques written by and published by . This book was released on 1979 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781722380052
Total Pages : 48 pages
Book Rating : 4.3/5 (8 download)
Download or read book Modeling of Aircraft Unsteady Aerodynamic Characteristics/Part 3 - Parameters Estimated from Flight Data. Part 3; Parameters Estimated from Flight Data written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-05 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: A nonlinear least squares algorithm for aircraft parameter estimation from flight data was developed. The postulated model for the analysis represented longitudinal, short period motion of an aircraft. The corresponding aerodynamic model equations included indicial functions (unsteady terms) and conventional stability and control derivatives. The indicial functions were modeled as simple exponential functions. The estimation procedure was applied in five examples. Four of the examples used simulated and flight data from small amplitude maneuvers to the F-18 HARV and X-31A aircraft. In the fifth example a rapid, large amplitude maneuver of the X-31 drop model was analyzed. From data analysis of small amplitude maneuvers ft was found that the model with conventional stability and control derivatives was adequate. Also, parameter estimation from a rapid, large amplitude maneuver did not reveal any noticeable presence of unsteady aerodynamics. Klein, Vladislav and Noderer, Keith D. Langley Research Center RTOP 505-64-52-01...
Author : James Matthew Clark
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (345 download)
Download or read book Flight Test Techniques for Aircraft Parameter Estimation in Ground Effect written by James Matthew Clark and published by . This book was released on 1993 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book PARAMETER ESTIMATION TECHNIQUES AND APPLICATIONS IN AIRCRAFT FLIGHT TESTING- PROCEEDINGS OF A SYMPOSIUM- NASA. written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 50 pages
Book Rating : 4.:/5 (317 download)
Download or read book Modeling of Aircraft Unsteady Aerodynamic Characteristics/Part 3 - Parameters Estimated from Flight Data written by and published by . This book was released on 1996 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 504 pages
Book Rating : 4.:/5 (319 download)
Download or read book NASA Reference Publication written by and published by . This book was released on 1977 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt:
